CTF Writeups
Competition challenges solved end to end, with the reasoning behind each step.
- •3 min read•malware-analysisdetection-engineering
Probably Just Fine - TryHackMe First Shift CTF Writeup
A step-by-step SOC investigation through TryHackMe's First Shift CTF scenario, covering threat intel lookups, file hash analysis, and report-driven attribution insights.
- •3 min read•reverse-engineeringstatic-analysis
Binary Whisper: Beginner Binary Analysis Walkthrough
A friendly, step-by-step writeup of the Binary Whisper challenge using basic static analysis and a tiny XOR decode script.
- •5 min read•web-securityctf
Advent of CTF 2025: Day 5 - Kramazon
Web exploitation challenge targeting a malicious e-commerce platform with cookie manipulation and privilege escalation vulnerabilities.
- •2 min read•toolingcryptography
Advent of CTF 2025: Day 1 - The Mission Begins
A beginner-friendly cryptography challenge involving multi-step encoding conversion using CyberChef to decode binary data into the final flag.
- •3 min read•forensicsrecon
Advent of CTF 2025: Day 2 - The First Strike
Network forensics challenge analyzing FTP traffic to identify compromised credentials during a Krampus Syndicate intrusion attempt.
- •4 min read•reconctf
Advent of CTF 2025: Day 3 - Syndicate Infrastructure
Advanced DNS reconnaissance challenge involving SPF and DKIM record analysis to uncover hidden infrastructure used by the Krampus Syndicate.
- •5 min read•reverse-engineeringstatic-analysis
Advent of CTF 2025: Day 4 - The Elf's Wager
Reverse engineering challenge involving static analysis of a stripped ELF binary with anti-debugging measures and XOR-based authentication.
- •4 min read•cryptographyctf
NahamCon Winter CTF 2025: Crypto Challenge Writeups
Comprehensive writeups for the cryptography challenges from NahamCon Winter CTF 2025, featuring Linear Lines affine cipher analysis and practical solving techniques.
- •6 min read•reverse-engineeringmobile-security
NahamCon Winter CTF 2025: Mobile Security Challenge Writeups
Detailed writeups for mobile security challenges from NahamCon Winter CTF 2025, covering Android APK reverse engineering, vulnerability analysis, and exploitation techniques.